Quarterly report pursuant to Section 13 or 15(d)

Concentrations (Tables)

v3.20.2
Concentrations (Tables)
9 Months Ended
Sep. 30, 2020
Risks and Uncertainties [Abstract]  
Schedule of customers
    Three Months Ended September 30,     Nine Months Ended September 30,  
Customer   2020     2019     2020     2019  
A (Hebei Daopei, a related party)     *       28 %     *       15 %
B     28 %     21 %     29 %     23 %
C     18 %     14 %     18 %     15 %
D     14 %     11 %     14 %     12 %
* Less than 10%